package com.itheima.list;

public class Demo03 {

    public static void main(String[] args) {
        Duilie duilie = new Duilie();
        duilie.rudui("aaa");
        duilie.rudui("bbb");
        duilie.rudui("ccc");
        duilie.rudui("ddd");
        System.out.println(duilie.chudui());
        System.out.println(duilie.chudui());
        System.out.println(duilie.chudui());
        System.out.println(duilie.chudui());


    }
}
